推薦產品
生物源
Geobacillus stearothermophilus
種類
Type X
形狀
lyophilized powder
比活性
30-350 units/mg protein (E1%/280)
分子量
34.6 kDa by amino acid sequence
純化經由
crystallization
運輸包裝
wet ice
儲存溫度
−20°C
相關類別
一般說明
嗜热菌蛋白酶是一种蛋白酶,其特异性不同于可用于序列研究的其他蛋白酶。
應用
一种含有四个钙离子的热稳定性(嗜热性)细胞外金属内肽酶。辅助因子是锌和钙。水解疏水性氨基酸残基N-末端的蛋白质键。最适pH为8.0,活性的最适温度为70℃。在pH 5-9.5范围内非常稳定。嗜热菌蛋白酶具有较低的切割特异性,因此,它能产生许多适合测序的短片段。优先切割顺序: X-切割-Y-Z,其中X = 任何氨基酸;Y = Leu,Phe,Ile,Val,Met,Ala;Z是除Pro以外的任何氨基酸。切割Leu的N末端优先于切割Phe的N末端,它们优于其他氨基酸。常用于限制性蛋白水解以绘制肽图谱以及蛋白质结构和构象变化研究。
嗜热菌蛋白酶也常用于商业合成N-(苄氧基羰基)-L-天冬氨酰-L-苯丙氨酸甲酯——人造甜味剂阿斯巴甜的前体。
已有研究显示嗜热菌蛋白酶具有前序列,可在体内充当分子内分子伴侣。 它还被用于研究氯化钠对其热稳定性和催化活性的影响。
品質
含有许多外源性酶。
單位定義
一个酶活性单位是指在pH 7.5、37℃条件下,每分钟水解酪蛋白并产生相当于1.0 μM (181 μg) 酪氨酸的颜色(使用Folin-Ciocalteu试剂显色)所需的酶量。
外觀
冻干粉末,含醋酸钙和醋酸钠缓冲盐
準備報告
最适pH为8.0,活性的最适温度为70℃。在pH 5-9.5范围内非常稳定。嗜热菌蛋白酶具有较低的切割特异性,因此,它能产生许多适合测序的短片段。优先切割顺序: X-切割-Y-Z,其中X = 任何氨基酸;Y = Leu,Phe,Ile,Val,Met,Ala;Z是除Pro以外的任何氨基酸。切割Leu的N末端优先于切割Phe的N末端,它们优于其他氨基酸。
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1
儲存類別代碼
11 - Combustible Solids
水污染物質分類(WGK)
WGK 3
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
分析證明 (COA)
輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。
客戶也查看了
Journal of molecular biology, 285(5), 1911-1915 (1999-02-02)
The zinc metalloendopeptidase, thermolysin (EC 3.4.24.27) produced by Bacillus thermoproteolyticus serves as a model of important physiological enzymes such as neprilysin, angiotensin converting enzyme and endothelin converting enzyme. Thermolysin is synthesised as a pre-proenzyme, with an N-terminal prosequence of 204
Nature methods, 2(3), 207-212 (2005-03-23)
Thermodynamic stability is fundamental to the biology of proteins. Information on protein stability is essential for studying protein structure and folding and can also be used indirectly to monitor protein-ligand or protein-protein interactions. While clearly valuable, the experimental determination of
Viruses, 12(12) (2020-12-23)
Viral entry is the first stage in the virus replication cycle and, for enveloped viruses, is mediated by virally encoded glycoproteins. Viral glycoproteins have different receptor affinities and triggering mechanisms. We employed vesicular stomatitis virus (VSV), a BSL-2 enveloped virus
Biotechnology and bioengineering, 46(6), 631-635 (1995-06-20)
N-(benzyloxycarbonyl)-L-aspartyl-L-phenylalanine methyl ester, a precursor of the synthetic sweetener, aspartame, was synthesized from N-(benzyloxycarbonyl)-L-aspartic acid and L-phenylalanine methyl ester with an immobilized thermolysin (EC 3.4.24.4) in the mixed organic solvent system of tert-amyl alcohol and ethyl acetate. A mixed solvent
Journal of cell science, 134(9) (2021-09-23)
Cytochrome c6 is a redox carrier in the thylakoid lumen of cyanobacteria and some eukaryotic algae. Although the isofunctional plastocyanin is present in land plants and the green alga Chlamydomonas reinhardtii, these organisms also possess a cytochrome c6-like protein designated
我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務